package com.itheima.service.impl;

import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.dao.CategoryDao;
import com.itheima.entry.Category;
import com.itheima.entry.Dish;
import com.itheima.entry.Setmeal;
import com.itheima.pojo.CustomException;
import com.itheima.service.CategoryService;
import com.itheima.service.DishService;
import com.itheima.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryDao, Category> implements CategoryService {
    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;


    @Override
    public void remove(Long id) {
            LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();
            dishLambdaQueryWrapper.eq(Dish::getCategoryId,id);
            int count1 = dishService.count(dishLambdaQueryWrapper);
            if(count1 > 0){
                throw new CustomException("当前分类下关联了菜品，不能删除");
            }

            LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper = new LambdaQueryWrapper<>();
            setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,id);
            int count2 = setmealService.count(setmealLambdaQueryWrapper);
            if(count2 > 0){
                throw new CustomException("当前分类下关联了套餐，不能删除");
            }

            super.removeById(id);

    }
}
